The nearly round 4 to 7.5 cm in diameter Passion Fruit, has a tough , smooth, waxy, skin (3 mm thick) ranging in hue from light green to dark-purple. , Within is an aromatic mass of membranous sacs filled with orange-colored, pulpy juice and as many as 250 small, hard, dark-brown or black, pitted seeds. The flavor is appealing, guava-like, subacid to acid.